concen: Central Concentration
In astro: Astronomy Functions, Tools and Routines

Description Usage Arguments Details Author(s) References See Also

Calculates the central concentration based on input Sersic parameters.

1	concen(a, n)

`a`	some inner radius (0 < a < 1)
`n`	Sersic index

This function calculates the central concentration of a galaxy dependent upon its Sersic index. In order for this calculation to succeed, the outer radial extent of the galaxy must be normalised to 1, and some arbitrary inner radius in the range 0 < a < 1 (for example, a = 1/3) must be chosen.

Lee Kelvin, <lee.kelvin@uibk.ac.at>

Graham A. W., Driver S. P., 2005, PASA, 22, 118

The astronomy package: astro.

astro documentation built on May 2, 2019, 2:14 a.m.